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Here was quite a display of the early gunsmithing arts. The foreground
portion of this machine has a metal strip to set the spiral pitch.
A sliding piece pulls a steel rod through the barrel with a wooden
dowel and cutter on the end, to cut the actual rifling grooves.
| Full EXIF Info | |
| Date/Time | 08-Aug-2014 14:07:38 |
| Make | Apple |
| Model | iPhone 5c |
| Flash Used | No |
| Focal Length | 4.1 mm |
| Exposure Time | 1/547 sec |
| Aperture | f/2.4 |
| ISO Equivalent | 50 |
| Exposure Bias | |
| White Balance | 0 |
| Metering Mode | matrix (5) |
| JPEG Quality | basic (1) |
| Exposure Program | program (2) |
| Focus Distance | |